1) repair leaking taps immediately
2)keep ACs at about 24 or more
3) use cfl
4) plant trees
5) turn off lights and fans when not in use
6) replace electric cookers with the cookers that work on natural gas
7) opt for a shower and not a bath
8) close tap while brushing
9) when switching off tv, switch off the main power supply too.
10) When washing the dishes, rinse them in a half-filled sink of water instead of washing them under running water.